staging: comedi: pcl812: clarify dma channel request in pcl812_attach()
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Mon, 17 Feb 2014 21:26:48 +0000 (14:26 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 18 Feb 2014 19:53:53 +0000 (11:53 -0800)
commit27f3f4d411cb700a5514bfdf93929d1402683061
treeb31005f862caaa52867502fc9ac963534c8ffdf4
parentba93331e33c4600fe72bcbbe1bf8afb72b425098
staging: comedi: pcl812: clarify dma channel request in pcl812_attach()

All the board types that can do DMA can use DMA channels 3 or 1. Remove
the 'DMAbits', which is a mask of the valid channels, from the boardinfo
and replace it with a bit-field flag 'has_dma'.

Refactor pcl812_attach() to use the new flag and remove the need for the
goto.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/pcl812.c